Log Message:
security/php-ssh2: update to 1.2

pkgsrc change: Switch to use PHP_VERSIONS_INCOMPATIBLE.

1.2 (2019-09-18)

- Fix multiple reflection/documentation disparities [PR #29] (Michael Moravec)
- Fix PHP7 port. Restored commented reference counting. [Dmitry Stogov]
- Updates for php_url structure changes [Daniel Ciochiu]
- Make the PR generic for all PHP7 versions [Jan Ehrhardt]
- Fix compatibility with PHP 7.3 [Jan Ehrhardt]
- Fix config.w32 for compatibility with OpenSSL 1.1.x [Anatol]
- Make static inline for php_ssh2_sftp_attr2ssb [Andy Postnikov]
- Enable 7.1-7.3 on Travis CI [Andy Postnikov]